darthcamaro writes "We all know that the open source LibreOffice Calc has been slow — forever and a day. That's soon going to change thanks to a major investment made by AMD into the Document Foundation. AMD is helping LibreOffice developers to re-factor Calc to be more performance and to be able to leverage the full power of GPUs and APUs. From the article: '"The reality has been that Calc has not been the fastest spreadsheet in the world," Suse Engineer Michael Meeks admitted. "Quite a large chunk of this refactoring is long overdue, so it's great to have the resources to do the work so that Calc will be a compelling spreadsheet in its own right."'" Math operations will be accelerated using OpenCL, unit tests are being added for the first time, and the supposedly awful object oriented code is being rewritten with a "modern performance oriented approach."

Sarah's CyberCraft "about" page says, "Here at CyberCraft Robots, our Orbiting Laboratory allows us to search local star systems for Artifacts from the Future." CyberCraft's Earthside component is in St. Petersburg, Florida, where Sarah assembles robots from found parts that others might think are just ordinary industrial detritus, but that she has learned to recognize as parts from disassembled or abandoned robots. She has an alternate version of CyberCraft's history for people "with less imagination," about how she jumped from being a math whiz to studying for an EE to working as a programmer to art... and into making art robots. Or robot art, depending on how you look at it. The robots, ray guns, and spaceships Sarah makes will not fight battles or clean your house. They just sit there and look good. And they get shown in fine art galleries, so we know they're art, not just ordinary robots. This isn't to say Sarah is the only human making robot sculptures. A Google search for "robot sculpture" turns up plenty of others. We met Sarah purely by chance. We easily could have met one of the many other robot sculptors instead, but she's the one we happened to come across first. Perhaps the Quantum Computer that runs the Orbiting Robot Laboratory directed us to her. That's as good an explanation as any, isn't it?

KernelMuncher writes "Australia's Royal Air Force has been left red-faced after a job ad asked applicants to solve a complex math problem that was revealed to be unsolvable. The service posted the puzzle in a bid to attract the country's best minds to its ranks. 'If you have what it takes to be an engineer in the Air Force call the number below,' it read, above a complicated formula which candidates had to crack. But there was a slight difficulty: The problem had typos and ended up not giving potential operatives the correct contact information."

Contributor Tom Geller writes: "I recently wrote an article about Bitcoin and the law for Communications of the Association for Computing Machinery. In researching it I ran into plenty of wishful thinkers, ridiculous greedheads, and out-and-out nutbags promising a rosy future. I also found the expected blowback from vehement naysayers who think the best way to combat crazy is with more crazy. But despite that, I walked away believing that Bitcoin — or a decentralized cryptocurrency like it (let's call it "Coin") — is here to stay. As an interested outsider to the Coin economy, and a long-time technology commentator, here's what I think its future holds." Read on for Tom's predictions.

theodp writes "Bill Gates already called dibbs on polio, so British Airways had to settle for tackling the 'global misalignment of talent' problem, putting '100 of the most forward-thinking founders, CEOs, venture capitalists, and Silicon Valley game-changers' on a flight from San Francisco to London to 'innovate and collaborate to find an effective solution to this growing global challenge.' UnGroundedThinking.com showcases the winning concepts, which include Advisher (an online community to help foster women in STEM), INIT ('nutritional labels' to disclose products' 'STEM ingredients'), DGTL (rewards young women with fashionable clothes for completing coding challenges), Beacons in a Backpack (solar powered backpacks pre-loaded with videos, multimedia content, and game-powered educational tools that also serve as mobile hotspots for rural/remote areas), Tech21 (STEM education program aimed at 21-years-and-older post-college grads in the workforce), Certify.me (allows STEM talent from across the globe to audition for potential employers via standardized-quality assessments), and STEAM Truck (a mobile dance lab where STEM art installations teach kids that science is fun and valuable). 'This has the feel of Southby [SXSW],' gushed a Google Ventures general partner. "It's a serendipitous occasion. It's about time we presented engineers to kids as role models — not just firefighters, cops, doctors, detectives. Who knows? Maybe The Internship changes that.'"

kkleiner writes "A self-described think tank of engineers and inventors called Two Bit Circus have completed a successful crowdfunding campaign to launch a high tech reinvention of carnivals from yesteryear. The campaign raised over $100k to launch the STEAM Carnival (as in Science, Technology, Engineering, Art, and Math) to take place in Los Angeles and San Francisco next year. Showcasing robots, fire, and lasers, the goal of the carnival is to inspire young people into science and technology through these entertaining and educational events."

Freshly Exhumed writes "Dave Siever always fancied himself as something of a musician, but also realized he did not necessarily sing or play in perfect key. Then he strapped on the electrodes of a device made by his Edmonton company, and zapped his brain's auditory cortex with a mild dose of electricity. The result, he claims, was a dramatic improvement in his ability to hear pitch, including the sour notes he produced himself. 'Now I tune everything and I practise my singing over and over and over again, because I'm more sensitive to it.' Mr. Siever was not under the supervision of a doctor or psychologist, and nor is he one himself. He is part of an extraordinary trend that has amateur enthusiasts excited, and some scientists deeply nervous: do-it-yourself brain stimulation." With studies suggesting that small doses of electricity can: increase your memory, help you learn new tasks, make you better at math, turn you into a sniper in minutes, and most importantly make the ugly seem attractive, we can expect a lot of brain zapping in the next few years.

eldavojohn writes "Core HTML5 Canvas is a book that focuses on illuminating HTML5 game development for beginning and intermediate developers. While HTML and JavaScript have long been a decent platform for displaying text and images, Geary provides a great programming learning experience that facilitates the canvas element in HTML5. In addition, smatterings of physics engines, performance analysis and mobile platform development give the reader nods to deeper topics in game development." Read below for the rest of eldavojohn's review.

oxide7 writes "A Texas banker with a knack for numbers has offered $1 million for anyone who can solve a complex math equation that has stumped mathematicians since the 1980s. The Beal Conjecture states that the only solutions to the equation A^x + B^y = C^z, when A, B and C are positive integers, and x, y and z are positive integers greater than two, are those in which A, B and C have a common factor. Like most number theories, it's "easy to say but extremely difficult to prove.""

An anonymous reader writes "Asteroid 1998 QE2 has an estimated diameter of 2.7 km. This asteroid will have a close approach with Earth at about 15.2 LD (Lunar Distances = ~384,000 kilometers) or 0.0392 AU (1 AU = ~150 million kilometers) at 2059 UT on 2013 May 31 and it will reach the peak magnitude ~10.8 on May 31 around 2300 UT." Radar images of the asteroid taken Wednesday show that 1998 QE2 has its own tiny moon, about 600 meters wide. Phil Plait explained how the images were taken, and what further information we gleaned from them. 'The very presence of the moon is a good thing. By measuring how long it takes to go around the primary, the mass of the primary can be found using math known for centuries (the more massive the big asteroid, the faster the moon will go around it at a given distance). We also know the size of the primary, so that means we can find its density, and therefore what it’s made of (probably mostly rock).'

AvailableNickname writes "I am currently pursuing a bachelor's in CompSci and I just spent three hours working on a few differential equations for homework. It is very frustrating because I just don't grok advanced math. I can sort of understand a little bit, but I really don't grok anything beyond long division. But I love computers, and am very good at them. However, nobody in the workforce is even going to glance at my direction without a BSc. And to punish me for going into a field originally developed by mathematicians I need to learn all this crap. If I had understood what I was doing, maybe I wouldn't mind so much. But the double frustration of not understanding it and not understanding why the heck I need to do it is too much. So, how important is it?"

sciencehabit writes "If you are one of the 20% of healthy adults who struggle with basic arithmetic, simple tasks like splitting the dinner bill can be excruciating. Now, a new study suggests that a gentle, painless electrical current applied to the brain can boost math performance for up to 6 months. Researchers don't fully understand how it works, however, and there could be side effects." We've covered various other potential benefits to having your brain shocked.

davecb writes "The Canadian Intellectual Property Office (CIPO) has recently published two notices for patent examiners relating to patent interpretation, and in particular computer-related/business method type patents saying: 'for example, what appears on its face to be a claim for an "art" or a "process" may, on a proper construction, be a claim for a mathematical formula and therefore not patentable subject matter.'"

ananyo writes "Researchers hoping to get '2' as the answer for a long-sought proof involving pairs of prime numbers are celebrating the fact that a mathematician has wrestled the value down from infinity to 70 million. That goal is the proof to a conjecture concerning prime numbers. Primes abound among smaller numbers, but they become less and less frequent as one goes towards larger numbers. But exceptions exist: the 'twin primes,' which are pairs of prime numbers that differ in value by 2. The twin prime conjecture says that there is an infinite number of such twin pairs. Some attribute the conjecture to the Greek mathematician Euclid of Alexandria, which would make it one of the oldest open problems in mathematics. The new result, from Yitang Zhang of the University of New Hampshire in Durham, finds that there are infinitely many pairs of primes that are less than 70 million units apart. He presented his research on 13 May to an audience of a few dozen at Harvard University in Cambridge, Massachusetts. Although 70 million seems like a very large number, the existence of any finite bound, no matter how large, means that that the gaps between consecutive numbers don't keep growing forever."

itwbennett writes "Researchers from the University of Edinburgh set out to test the long-held assumption that kids who performed well in school at a young age carried that early success through to adulthood. And prove it they did! Specifically, 'Math and reading ability at age 7 may be linked with socioeconomic status several decades later.' Early success even correlates 'over and above associations with intelligence, education, and socioeconomic status in childhood.'"

An anonymous reader writes "Frédéric Wang, an engineer at the MathJax project, reports that the latest nightly build of Firefox now passes the MathML Acid2 test. Screenshots in his post show a comparison with the latest nightly Chrome Canary, and it's not pretty. He writes 'Google developers forked Webkit and decided to remove from Blink all the code (including MathML) on which they don't plan to work in the short term.'"

waderoush writes "Consumer Reports calls extended warranties 'money down the drain,' and as a tech journalist and owner of myriad gadgets — none of which have ever conked out or cracked up during the original warranty period — that was always my attitude too. But when I met recently with Steve Abernethy, CEO of San Francisco-based warranty provider SquareTrade, I tried to keep an open mind, and I came away thinking that the industry might be changing. In a nutshell, Abernethy says he's aware of the extended-warranty industry's dreadful reputation, but he says SquareTrade is working to salvage it through a combination of lower prices, broader coverage, and better service. On top of that, he made some persuasive points – which don't seem to figure into Consumer Reports' argument – about the way the 'risk vs. severity' math has changed since the beginning of the smartphone and tablet era. One-third of smartphone owners will lose their devices to drops or spills within the first three years of purchase, the company's data shows. If you belong to certain categories — like people in big households, or motorcycle owners, or homeowners with hardwood floors — your risk is even higher. So, in the end, the decision about buying an extended warranty boils down to whether you think you can defy the odds, and whether you can afford to buy a new device at full price if you're one of the unlucky ones."

mikejuk writes with news of an advancement for homomorphic encryption and open source: "To be fully homomorphic the code has to be such that a third party can add and multiply numbers that it contains without needing to decrypt it. In other words they can change the data by working with just the encrypted version. This may sound like magic but a fully homomorphic scheme was invented in 2009 by Craig Gentry. This was a step in the right direction but the problem was that it is very inefficient and computationally intensive. Since then there have been a number of improvements that make the scheme practical in the right situations Now Victor Shoup and Shai Halevi of the IBM T J Watson Research Center have released an open source (GPL) C++ library, HElib, as a Github project. The code is said to incorporate many optimizations to make the encryption run faster. Homomorphic encryption has the potential to revolutionize security by allowing operations on data without the need to decrypt it."

Avantare writes "The first sci-fi novel I read was A Wrinkle in Time; the next was Dune. Why don't more people read these extraordinarily imaginative books? Delegate Ray Canterbury, who represents Greenbrier County in southern WV, wants to help with that. Canterbury introduced House Bill 2983, which reads, 'To stimulate interest in math and science among students in the public schools of this state, the State Board of Education shall prescribe minimum standards by which samples of grade-appropriate science fiction literature are integrated into the curriculum of existing reading, literature or other required courses for middle school and high school students.' For decades, walking around with a paperback sci-fi novel in your back pocket at school was the quickest way to find yourself permanently excluded from the cool-kid clique. But what if it wasn't just the geeks who read Isaac Asimov and Arthur C. Clarke? What if science fiction was mandatory reading for all students?"

An anonymous reader writes "A study released Wednesday by the left-leaning Economic Policy Institute reinforces what a number of researchers have come to believe: that the STEM worker shortage is a myth. The EPI study found that the United States has 'more than a sufficient supply of workers available to work in STEM occupations.' Basic dynamics of supply and demand would dictate that if there were a domestic labor shortage, wages should have risen. Instead, researchers found, they've been flat, with many Americans holding STEM degrees unable to enter the field and a sharply higher share of foreign workers taking jobs in the information technology industry. (IT jobs make up 59 percent of the STEM workforce, according to the study.)"